This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A350210 #11 Feb 16 2025 08:34:02 %S A350210 140,490,1055,1872,2610,4255,5011,8708,7497,10819,12860,15636,18055, %T A350210 24275,27373,28146,30826,38178,41849,44025,36165,47621,57896,64648, %U A350210 60064,67125,71975,81820,77701,91584,91320,99835,98916,108686,112606,123180,120919,142270 %N A350210 a(n) is the smallest positive integer which can be represented as the sum of distinct nonzero n-gonal pyramidal numbers in exactly n ways, or 0 if no such integer exists. %H A350210 Martin Ehrenstein, <a href="/A350210/b350210.txt">Table of n, a(n) for n = 3..1002</a> %H A350210 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PyramidalNumber.html">Pyramidal Number</a> %e A350210 For n = 3: 140 = 1 + 20 + 35 + 84 = 56 + 84 = 20 + 120. - _Martin Ehrenstein_, Jan 09 2022 %Y A350210 Cf. A080851, A350205, A350206, A350207, A350209, A350397. %K A350210 nonn %O A350210 3,1 %A A350210 _Ilya Gutkovskiy_, Dec 19 2021 %E A350210 a(35)-a(40) from _Martin Ehrenstein_, Jan 09 2022